/***************************************************************************
 *      pfunc.h
 * 
 *      Description: The class for using functions defined in python scripts
 *		
 *      Copyright 2012 Artem Korzhimanov <korzhimanov.artem@gmail.com>
 *      
 *      This program is free software; you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License as published by
 *      the Free Software Foundation; either version 2 of the License, or
 *      (at your option) any later version.
 *      
 *      This program is distributed in the hope that it will be useful,
 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *      GNU General Public License for more details.
 *      
 *      You should have received a copy of the GNU General Public License
 *      along with this program; if not, write to the Free Software
 *      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 *      MA 02110-1301, USA.
 ***************************************************************************/


#include "pfunc.h"
#include <cstdarg>
#include <iostream>

using namespace std;

pFunc::pFunc(PyObject* pObj)
{
	function = pObj;
}

pFunc::pFunc(const pFunc& pfunc)
{
	function = pfunc.function;
}

pFunc::~pFunc()
{
	Py_DECREF(function);
}

double pFunc::call(double arg1)
{
	PyObject* ArgsTuple = PyTuple_New(1);
	PyTuple_SetItem(ArgsTuple, 0, PyFloat_FromDouble(arg1));
	
	PyObject* Result = PyObject_CallObject(function, ArgsTuple);
	
	double ret = PyFloat_AsDouble(Result);
	
	Py_DECREF(ArgsTuple);
	Py_DECREF(Result);
	
	return ret;
}

double pFunc::call(double arg1, double arg2)
{
	PyObject* ArgsTuple = PyTuple_New(2);
	PyTuple_SetItem(ArgsTuple, 0, PyFloat_FromDouble(arg1));
	PyTuple_SetItem(ArgsTuple, 1, PyFloat_FromDouble(arg2));
	
	PyObject* Result = PyObject_CallObject(function, ArgsTuple);
	
	double ret = PyFloat_AsDouble(Result);
	
	Py_DECREF(ArgsTuple);
	Py_DECREF(Result);
	
	return ret;
}

double pFunc::call(double arg1, double arg2, double arg3)
{
	PyObject* ArgsTuple = PyTuple_New(3);
	PyTuple_SetItem(ArgsTuple, 0, PyFloat_FromDouble(arg1));
	PyTuple_SetItem(ArgsTuple, 1, PyFloat_FromDouble(arg2));
	PyTuple_SetItem(ArgsTuple, 2, PyFloat_FromDouble(arg3));
	
	PyObject* Result = PyObject_CallObject(function, ArgsTuple);
	
	double ret = PyFloat_AsDouble(Result);
	
	Py_DECREF(ArgsTuple);
	Py_DECREF(Result);
	
	return ret;
}
